As secondary goals, he hoped to create a cultivation system everyone could use, and that would benefit him when they did. The last condition mattered most.
If the increase in the popularity of his cultivation system wouldn't make him stronger, the cultivation system had to be something no one could copy. He would rather not use it and stick with the Root of Life than risk losing his advantage by letting everyone use his new cultivation system.
He knew that he was being overly ambitious with the cultivation system, but he didn't have anything else to do. Plus, he had a clone who had nothing else to do aside from enslaving him, tracking him, and spying on his thoughts.
Since white Loki was available for us, he felt it would be a shame to waste the free labor. So even if the pursuit of the superior cultivation system turned into a wild-goose chase and a waste of time, he would only be wasting free manpower.
